a {
  color: #666;
  text-decoration: none;
}
input {
  border: none;
  outline: none;
}
html {
  font-size: 50px;
}
@media screen and (min-width: 320px) {
  html {
    font-size: 21.33333333px;
  }
}
@media screen and (min-width: 360px) {
  html {
    font-size: 24px;
  }
}
@media screen and (min-width: 375px) {
  html {
    font-size: 25px;
  }
}
@media screen and (min-width: 384px) {
  html {
    font-size: 25.6px;
  }
}
@media screen and (min-width: 400px) {
  html {
    font-size: 26.66666667px;
  }
}
@media screen and (min-width: 414px) {
  html {
    font-size: 27.6px;
  }
}
@media screen and (min-width: 424px) {
  html {
    font-size: 28.26666667px;
  }
}
@media screen and (min-width: 480px) {
  html {
    font-size: 32px;
  }
}
@media screen and (min-width: 540px) {
  html {
    font-size: 36px;
  }
}
@media screen and (min-width: 720px) {
  html {
    font-size: 48px;
  }
}
@media screen and (min-width: 750px) {
  html {
    font-size: 50px;
  }
}
* {
  margin: 0;
  padding: 0;
}
body {
  background: -webkit-linear-gradient(top, #C63CB8, #776CC9);
}
.title {
  width: 550px;
  height: 120px;
  background-color: #800080;
  border-radius: 0 0 80px 80px;
  font-size: 62px;
  text-align: center;
  line-height: 120px;
  color: #fff;
  margin: 225px auto;
}
form {
  width: 550px;
  margin: 50px auto;
}
form input {
  display: block;
  margin: 10px auto;
}
form .num,
form .pass {
  width: 470px;
  height: 80px;
  border: 1px solid #fff;
  font-size: 50px;
}
form .check {
  margin-left: 40px;
  height: 30px;
}
form .check::after {
  content: "记住密码";
  display: inline-block;
  width: 100px;
  height: 30px;
  line-height: 30px;
  font-size: 18px;
  margin-left: 15px;
  color: #fff;
}
form button {
  width: 470px;
  height: 80px;
  background-color: #C936EE;
  border-radius: 40px;
  color: #fff;
  border: none;
  font-size: 30px;
  margin: 10px 40px;
}
